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2 years ago

Use the distributive property to simplify the expression, 21m(10-6m)

Mathematics

1 answer:

photoshop1234 [79]2 years ago

4 0

$21m(10-6m)=\\ 21m*10-21m*6m=\\ 210m-126m^2=\\ -126m^2+210m$

The last two steps are just me reordering it so it's in standard form.

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Explain how you know 7/12 is greater than 1/3 but less than 2/3

Roman55 [17]

7/12
1/3=4/12
2/3=8/12

7/12>1/3
<span>7/12<2/3
</span>

convert all of these to a common denominator:
7/12 , 1/3 , 2/3
---
7/12 = 7/12
1/3 = 4/12
2/3 = 8/12
---
place into compound inequality:
---
(1/3=4/12) < (7/12=7/12) < (2/3=8/12)

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2 years ago

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Stanley bought some tins and decided to fill them with brownies to give to his friends. Stanley baked 471 brownies. He put 9 bro

Temka [501]

3 brownies left over :) he filled 52 tins

8 0

3 years ago

If nine times a certain number is subtracted from 7 the result is 52. Find the number.

mezya [45]

Answer:

Let the number to find be x

7 - 9x = 52

-9x = 52-7

- 9x = -45

Divide by - 9

x = 5

The number is 5

Hope this helps.

6 0

3 years ago

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When analyzing three linear functions, Daniel noticed that they all intersected at the point (7, 7). What conclusion can Daniel

liberstina [14]

That it has the highest y-intercept of all of the three linear functions.

(and that the question could be worded better, but don't put that in your answer)

7 0

2 years ago

the height of a ball dropped from a 160 foot building after t seconds is represented by h(t)=160-16t^2.how high will the ball be

alekssr [168]

Answer:

The height of the ball after 3 secs of dropping is 16 feet.

Step-by-step explanation:

Given:

height from which the ball is dropped = 160 foot

Time = t seconds

Function h(t)=160-16t^2.

To Find:

High will the ball be after 3 seconds = ?

Solution:

Here the time ‘t’ is already given to us as 3 secs.

We also have the relationship between the height and time given to us in the question.

So, to find the height at which the ball will be 3 secs after dropping we have to insert 3 secs in palce of ‘t’ as follows:

$h(3)=160-16(3)^2$

$h(3)=160-16 \times 9$

h(3)=160-144

h(3)=16

Therefore, the height of the ball after 3 secs of dropping is 16 feet.

8 0

2 years ago